Igor' Yefimovich Rogalyov (born in 1948) is the Petersburgian composer, author of the operas, scores for symphony, string and chamber orchestra, concertos, cantata-oratorio canvases, so as the chamber-instrumental ones.

Dating 1992 the Sonata ''Fact and Commentary'' for bayan is called in honour of the popular TV programme of that time. Hence this piece of music possesses the full command of features peculiar to the TV style. The structure of two movements corresponds to the binary process inherent to mass media information, including the meant programme, i. e. the briefly represented fact recalling the sense of innuendo and the interpretation unfolded as broad as the commentator's lungs may accommodate, ringing with all possible emotional overtones. The irony is rather suitable here, for the whole Sonata is permeated with the author's grin, recalled by the process of total politization, peculiar to that time.

The composition is full of bold bayan sounding experiments . The instrument is called forth to reveal all the hints of oral speech. Thus the bayan is now heard a-talking, now a-growling, now murmuring something...

Here the edition by Yevgeniy Petrov is represented. He became its first performer in 1997 at the Maly Hall of the St Petersburg Philharmonic Society.